True or False: No level of barrier can prevent the cross contact of an allergen?

The statement that no level of barrier can prevent the cross contact of an allergen is considered true because allergens are microscopic and can easily transfer from one surface to another, making complete prevention exceedingly difficult. For example, when handling food, even slight residual particles from allergens can remain on utensils, cutting boards, or countertops, which can then inadvertently contaminate allergen-free foods.

Cross contact can occur through indirect means such as airborne particles, shared equipment, or improper cleaning methods, emphasizing that while barriers (like gloves or separate utensils) can significantly reduce the risk, they cannot eliminate it entirely. This is particularly relevant in environments where allergens are prevalent, such as commercial kitchens. Thus, while various strategies can minimize the risk of cross contact, a guarantee of complete prevention does not exist.